1 ESO - Unit 05 - Exercises 1.5.4 - Square Roots and Decimal Numbers Problems

1. UNIT 05 January
1. Calculate:
𝒂𝒂) √𝟎𝟎. 𝟎𝟎𝟎𝟎
𝒃𝒃) √𝟎𝟎. 𝟎𝟎𝟎𝟎
𝒄𝒄) √𝟎𝟎. 𝟐𝟐𝟐𝟐
𝒅𝒅) √𝟎𝟎. 𝟔𝟔𝟔𝟔
𝒆𝒆) √𝟎𝟎. 𝟎𝟎𝟎𝟎𝟎𝟎𝟎𝟎
𝒇𝒇) √𝟎𝟎. 𝟎𝟎𝟎𝟎𝟎𝟎𝟎𝟎
2. Round off to one and two decimal places:
𝒂𝒂) √𝟓𝟓𝟖𝟖
𝒃𝒃) √𝟕𝟕. 𝟐𝟐
𝒄𝒄) √𝟎𝟎. 𝟓𝟓
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.5.4.1

2. UNIT 05 January
𝒅𝒅) √𝟏𝟏𝟒𝟒
𝒆𝒆) √𝟖𝟖. 𝟓𝟓
𝒇𝒇) √𝟎𝟎. 𝟎𝟎𝟎𝟎
3. Calculate with one decimal place:
𝒂𝒂) √𝟓𝟓. 𝟕𝟕𝟕𝟕
𝒃𝒃) √𝟑𝟑𝟐𝟐. 𝟖𝟖
𝒄𝒄) √𝟏𝟏𝟑𝟑𝟑𝟑. 𝟖𝟖𝟖𝟖
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.5.4.2

3. UNIT 05 January
4. Determine the number of 2.4 lengths of piping required to construct a 720 drain.
5. A car averages 6.3 kilometres per litre of petrol. How much petrol will be needed
for a 110.25-km trip?
6. Manuel works in a store, wrapping gift packages. For each package 0,75 € are
given to him.
a) Yesterday he wrapped 30 packages. How much he won?
b) How many packages has he to wrapp today to win 20 €?
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.5.4.3